John Oponjo Benjamin (born 29 November 1952) is a Sierra Leonean economist and politician of Mende descent.

He was the leader of the main opposition Sierra Leone People's Party (SLPP) to 2013.

He served as Minister of Finance of Sierra Leone from 2002 to 2007.

[1][2] During that period, Benjamin helped lead Sierra Leone through the Paris Club's 100% debt cancellation program.

This article about a Sierra Leonean politician is a stub.